Yes
... and the former P. friedrichsthalii is now P. multifasciatus.Scientific names have changed a few times which is is why. Currently they are:
Parachromis dovii
Chiapaheros grammodes
Parachromis fredrichsthalii
No more Loisellei. They were found to be fredrichsthalii.
Not from my search. All I can find is forums suggesting it’s multifasciatus. I couldn’t even find anything suggesting they are synonyms, which is what I originally thought..... and the former P. friedrichsthalii is now P. multifasciatus.